Log-skidding grapple



H. ANDERSEN.

LOG SKIDDING GRAPPLEP APPLICATION FILED JUNE 9.1919.

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1,353,503. PatentedSept. 21,1920.

3 SHEETS-SHEET 2- [74/76. ill/en oy ensen fig hisfliionrzeys H.ANDERSEN.

LOG SKIDDING GRAPPLEV APPLICATION FILED JUNE 9. 1919.

1,353,503. PatentedSept. 21\, 1920.

3 SHEETS-SHEET 3.

iiil' 3 'I W flans Andefsen UNITED sira'rs ans ANDERSEN, or NYMORE,MINNESOTA.

LOG-SKiDDING GRAPPLE Q v Specification of Letters Patent. 21, 19 20.

Application filed June 9, 191a Serial no. 302,789;

T 0 all whom it may concern Be it known that I, Hans. 'ANDERSEN, acitizen of the United States, residing at Nymore, in the county ofBeltrami and State of Minnesota, have invented certain new and usefulImprovements in Log-Skidding Grapples; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will on able others skilled in the art to which it appertains tomake and use the same.

My invention has for its object to provide a log skidding grapple; and,to this end, it consists of the novel devices and combinations ofdevices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, likecharacters indicate like parts throughout the several views. 4

Referring to the drawings c Figure 1 is a plan view of the improvedgrapple in position to engage alog, some parts being broken away and.sectioned;

Fig. 2' is a view partly in side elevation and partly in section of theparts shown in F i .1'

Fig. 3 is a fragmentary detail view, partly in plan and partly insection, taken on the line 33 of Fig. 2; a a

Fig. 4 is a fragmentary View, partly in elevation and partly in section,taken on the line 4-4: of Fig. 1; v 7 Fig. 5 is a perspective view ofthe grapple headand a portion of the pulling link; and Fig. 6 is adetail view, partly in elevation and partly in section, taken on theline'6 6 ofFig. 1. V

The numeral 7 indicates ahead that is bifurcated to afford a pair ofupper and lower prongs 8, which, in turn, are bifurcated to afford pairsof hinge lugs 9. The head 7 is also provided with a square shank 10,which projects in an opposite direction from the prongs 8, and extendingthroughits inner end portion, is a horizontal slot 11. 'A pair ofcrossed and reversely curved grapple levers 12 extends between theprongs 8 and is pivotally connected thereto by a bolt 13. On the freeends or" the long, arms of the levers 12, are inwardly projecting barbs1 1, and secured in the free ends of the short arms of said levers arelinks 15. These links 15 have interlockingengagement with a pulling link16 having formed shown, will be attached to cured over the'ground.

pressed therein, there :end portion and has ratchet teetlr21 on thebottom of the channel. The latch bar 20 is pivoted'to ple levers 12'to'close. The not therewith a sleeve 17 mounted on the shank 10..Thesleeve 17 is square in crosssection and closely fits the shank -l0onwhich it is free to slide endwise, but isheld against is understood thata cable or chain, not the link 16 for dr'aggingthe logto which thegrapple is se- To look the long arms of the grapple levers 12 againstopening movement, when closed onto a log Y, with their barbs 14 isprovided a latch comprising a segmental channel member 19 and acooperating segmental bar member 20.

The latch. member 19 is rigidly secured to the intermediate portion ofthe short arm of one '01? the grapple levers 12 with its free extendingthrough the slot 11 the short arm of the other grapple lever 12, looselylies in the channel of the latch member 19, and-- is provided withratchet teeth 22' adapted to interlock with the ratchet is moved towardthe head 7. Of course, it

teeth 21. The ratchet teeth'2 l and 22 are arranged to hold the shortarms of theg'rapagainst spreading movement, and he11o'e',a like movementof the long arms of said levers, but will freely slide over each otherto permit the long arms of said levers ches 18in the sleeve 17 atfordclearance for the latch members 19 and 20, as shown in Fig. 1. A spring'23, .se-

ratchet teeth 21, there is provideda lock in theform 01' two short rods24 and 25 con nected' by a turn-buckle 26. The outer end of the rod 2 1is pivotally connected to the cured to the same grapple lever 12 towhich i the latch member 20 is intermediate portion of the latch bar20and the other end of therod 25 is bent to form a hook 27, which isinterlocked with a slot 28 in a lug 29 on the short arm ofthe samegrapple lever 12 with said latch bar. When the lock r'ods 24 and 25 areextended by the turn-buckle 26, to prevent separation or" the allyconnected v ranged to permit opening and closing moveratchet teeth 21and 22, the hook 27 on the rod 25 bears against the outer end of theslot 28 as a base of resistance. a

A pair of skid bars 30 have on one of their ends hinge lugs 31, whichextend between the hinge lugs 9 on the head 7, and are pivotthereto byhinge bolts 32 arments of said skid bars, at right angles to likemovements of the grapple levers 1 2. These skid bars are ofsubstantially the same length and curve as the long arms of the grapplelevers 12 and extend therebetween. ()n the inner faces of the other orfree ends of the skid bars 30 are holding lugs or bosses 33 arranged toengage a log Y, at diametri- V cally opposite points, and thereby holdsaid skid bars against circumferential movement thereon. vA multiplicityof longitudinally extended ribs 34 are formed on the outer faces of theskid bars 30 and hold saidskid bars from slipping edgewise, when in en-7 gagement with the ground Z.

The long arms of the grapple levers 12 are intermediately connected by atoggle In case the pull on the link 16 should becomeslack; for instance,when going down grade, the base. of resistance for the locks 24, 25 and26 might yield, by a slight spreading movement of the grapple levers 12,and thereby permit the latch bar 20 to move sufficiently to allow itsratchet teeth 22 to separate from the ratchet teeth 21, werelit not forthe spring 23.

When the improved log-skidding grapple is applied to a log, the grapplelevers 12 extend substantially in a horizontal plane and the skid bars30 extend in substantially a vertical plane, with the front end of thelog resting on the lower skid bar, as shown in Fig. 2 This lower skidbar 30 acts as a curved runner for the front end of a logand preventsthe same from digging into the ground, ice or snow. The long arms of thegrapple levers 12 and the skid bars 30 also act as a guard to guide thelog past obstructions.

WVhat I claim is 1. A log skidding device comprising a rigid head, apair of cooperating grapple levers intermediately pivoted to said head,and a relatively wide'skid bar pivoted at the grapple levers and skidits forward end to the head for vertical swinging movement in respect tothe grapple levers.

2. A. log skidding device comprising a rigid head, a pair of cooperatinggrapple levers intermediately pivoted to said'head, and a pair ofrelatively wide skid bars pivoted at their forward ends to the head forverticalswinging movement in respect to the grapple levers.

3. A log skidding device comprising a ri id head, a pair of cooperatinggrapple levers intermediately pivoted to said head, a relatively wideskid bar pivoted at its forward end to the head for swinging movementtransversely of the movement of said levers, a toggle lever connectingthe grapple levers, and a connection between the skid bar and joint ofthe toggle lever, whereby the grapple levers and skid bar aresimultaneously openedand closed. I

4, A log skidding device comprising a pair of cooperating grapplelevers, a pair of skid bars pivoted for movement transversely of themovement of the grapple levers, and two toggle levers, the oneconnecting the grapple levers and the other theskid bars, said twotoggle levers being connected at their intermediate joints, whereby thegrapple levers, and skid, bars are simultaneously opened and closed.

5. A log skidding device comprising a head, a pair of cooperatinggrapple levers intermediately pivoted to said; head, a pair of skid barspivoted to the head for movement transversely of the movement of thegrapple levers, a pulling link having a sleeve slidably mounted on thehead, and coupling iints between the grapple levers and pulling in V 6.A log skidding device comprising a head, a pair of cooperating grapplelevers intermediately pivoted to said'head, a pair of skid bars pivotedto the head for movement transversely of the movement of thegrapple1evers,a pulling link having a'sleeve slidably mounted on thehead, coupling links between the grapple levers and pulling link, andconnections for simultaneously opening and closing the grapple lever andskid bars.

7. A log skidding device comprising a bi- V furcated head,a pair ofcooperatingv grapple levers intermediately pivoted to and between theprongs of said head, a pair of skid bars pivote to the prongs of saidhead for movement transversely of the movement of the grapple levers,pulling connections between the grapple levers, and connections forsimultaneously openlng and closing the grapple levers and skid bars.

8. A log skidding device comprising a head, a pair of cooperatinggrapple leversintermediately pivoted to said'head, pulling connectionsbetween said levers, and a latch comprising two ratchet tooth-equippedmembers which, when interlocked, hold the long arms of the grapplelevers against opening movement, one of said members being rigidlysecured to one of the grapple levers and the other thereof being pivotedto the other of said grapple levers.

9. A log skidding device comprising a head, a pair of cooperatinggrapple levers lntermediately pivoted to said head, pullingconnectionsbetween said levers, a latch comprising two ratchet tooth-equippedmembers which, when interlocked, hold the long arms of the grapplelevers against opening movement, one of said members being rigidlysecured to one of the grapple levers and the other thereof being pivotedto the other of said grapple levers, and a spring under strain to holdthe movable latch member interlocked with the fixed member thereof.

10. A log skidding device comprising a bifurcated head, a pair ofcooperating grapmember, said channel latch member havin on its bottomratchet teeth with which of; teeth of the ratchet bar interlock to holdthe grapple levers against opening movement.

in presence of two witnesses,

. HANS ANDERSEN.

lVitnesses:

CLARA DEMAREST, HARRY D. KILGORE.

In testimony whereof I affix my signature said head, a

